After Peterson & Eernisse, 2001, and Adl et al., 2005

Alternative phylogeny after Zrzav & Hypša, 2003

<==o Metazoa (monisoluiset eläimet; multicellural animals)
   |?- †Archaeocyatha Vologdin, 1937 [Cyathospongia Okulitch, 1935; Pleospongia Okulitch, 1935] [enigmatic Cambrian sponges?]
   |-- Porifera Grant, 1872 [Parazoa Sollas, 1884] (sienieläimet; sponges)
   `--+-- Trichoplax adhaerens von Schultze, 1883 [Phagocytellozoa: Placozoa Grell, 1971] (laakkoeläimet)
      `--+-- Rhombozoa Krohn, 1839 sensu Parker, 1982 [Planuloidea; Moruloidea; Mesozoa van Beneden, 1877 (in partim)] sensu Conway-Morris, 1993 (harvasoluiset 1)
         |-- Orthonectida Giard, 1880 [Mesozoa van Beneden, 1877 (in partim)] (harvasoluiset 2)
         `--+?- Salinella salve Frenzel, 1892 [Monoblastozoa] (salvaeläimet)
            `--o Animalia Linnaeus, 1758, emend. Adl et al., 2005 [Eumetazoa Bütschli, 1910]
               |?- †Ventogyrus Ivantsov & Grazhdankin, 1997
               |?- †Arkarua adami [a non-echinodermate Ediacaran organism]
               |?-o †Rangeomorpha [Vendobionta]
               |  |-- †Charnia
               |  |-- †Paracharnia
               |  |-- †Rangea
               |  `-- †Bomakellia kelleri Fedonkin 1985 [originally descripted as proto-arthropod]
               |-- Cnidaria Hatschek, 1888 [Cridaria (lapsus calami)] (polttiaiseläimet)
               `--+-- Bilateralia (kaksikylkis-symmetriset eläimet; bilaterally symmetric animals)
                  `--+?- †Fasciculida
                     `-- Ctenophora (kampamaneetit)

After Zrzavý & Hypša, 2003

<==o Metazoa
   |?- †Archaeocyatha
   |-- Porifera
   `--o Animalia
      |--+-- Cnidaria
      |  `--+-- Trichoplax adhaerens
      |     `-- Ctenophora
      `--+--+--o Acoela
         |  |  |?- Xenoturbella bocki
         |  |  `--+-- Gnathostomulida
         |  |     `-- Platyhelmithes
         |  `--+-- Mesozoa
         |     `--+-- Polypodium
         |        `-- Myxozoa sensu Zrzavý & Hypša, 2003
         `--+?- Monoblastozoa
            `-- Bilateralia

Reference(s):

  • Zrzavý, J. & Hypša, V., 2003: Myxozoa, Polypodium, and the origin of the Bilateria: The phylogenetic position of "Endocnidozoa" in the light of the rediscovery of Buddenbrockia.
    –Cladistics: Vol. 19, #3, pp. 164-169

Reference(s):